BLS High-Quality CPR & Provider Skills Flashcards
6 cards from real BLS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 BLS High-Quality CPR & Provider Skills flashcards as text
When delivering breaths with a bag-mask device during CPR, what tidal volume is recommended?
Answer: Enough volume to produce visible chest rise
Deliver just enough tidal volume to produce visible chest rise; over-ventilation causes gastric inflation and reduces cardiac output.
The E-C clamp technique for bag-mask ventilation refers to:
Answer: Using the thumb and index finger (C-shape) to seal the mask and the remaining fingers (E-shape) to lift the jaw
The C-shape seals the mask to the face while the E-shape lifts the mandible, ensuring a patent airway and an effective mask seal simultaneously.
For 2-rescuer BLS in a child (not a newborn or adult), what is the correct compression-to-ventilation ratio?
Answer: 15:2 — allowing more frequent breaths for the pediatric patient
The 2-rescuer pediatric ratio is 15:2, providing more ventilations to address the greater role of hypoxia in pediatric cardiac arrests.
How do you confirm that bag-mask ventilation is effective during CPR?
Answer: By observing visible chest rise with each delivered breath
Visible chest rise is the most reliable real-time indicator that ventilations are entering the lungs and not the stomach.
Why is over-ventilation harmful during CPR?
Answer: It raises intrathoracic pressure, reducing venous return and cardiac output during CPR
Excessive positive pressure in the chest opposes venous return, impairing heart refilling and reducing blood flow with each compression.
Once an advanced airway is placed during adult CPR, what is the recommended ventilation rate?
Answer: 1 breath every 6 seconds (10 per minute)
With an advanced airway, compressions are continuous and ventilations are delivered asynchronously at 10 per minute (1 every 6 seconds).